#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
int main() {
	int w, h2;
	scanf("%d%d", &w, &h2);
	float h1 = h2 / 100.0;
	float MBI = w / (h1*h1);
	printf("%.2lf", MBI);
	return 0;
}